I came here looking for suggestions for the same question. I have a fenced in acreage, I have a secure coop and a gated run, and I still have predator problems. We have reinforced our run after losing our entire flock of 30+ birds in the middle of the day by a Lynx this winter. We have fox, coyote, lynx, and the occasional wolf and bear. We have dogs now, but the only protective one we have is aging and its time I consider his retirement. I’m considering an Anatolian Shepherd, a Great Pyrenees was on our list as well but after talking to some farming friends with LGD experience they advised me that the GP breed tend to bark a lot, 24/7, and that won’t work for our neighbours. I need to deter the predators that have become quite comfortable stalking our pen and coop and I think a LGD is the answer for me.